243585225 has 120 divisors (see below), whose sum is σ = 512536640. Its totient is φ = 113374080.

The previous prime is 243585193. The next prime is 243585227. The reversal of 243585225 is 522585342.

It is a happy number.

It is not a de Polignac number, because 243585225 - 2⁵ = 243585193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243585225.

It is not an unprimeable number, because it can be changed into a prime (243585227) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 499932 + ... + 500418.

Almost surely, 2^243585225 is an apocalyptic number.

243585225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243585225 is an abundant number, since it is smaller than the sum of its proper divisors (268951415).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243585225 is a wasteful number, since it uses less digits than its factorization.

243585225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 527 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 243585225 is about 15607.2170805688. The cubic root of 243585225 is about 624.5256988191.

The spelling of 243585225 in words is "two hundred forty-three million, five hundred eighty-five thousand, two hundred twenty-five".